| Structure |
Chemical Name |
CAS |
MF |
 |
Atorvastatin pyrrolidone lactone |
906552-19-0 |
C33H33FN2O5 |
 |
Avibactam Impurity C |
|
|
 |
Axitinib Impurity 16 |
|
|
 |
Axitinib Impurity 22 |
|
|
 |
Avibactam Impurity 44 |
2064219-22-1 |
C23H46N4O6S |
 |
Axitinib Impurity 1 |
|
|
 |
Pyrazinecarboxylic acid, 5-methyl-, 1-oxide (9CI) |
98502-96-6 |
C6H6N2O3 |
 |
ltrombopag Impurity 26 |
|
|
 |
4-アミノ-1-(2,3,5-トリ-O-アセチル-Β-D-リボフラノシル)-1,3,5-トリアジン-2(1H)-オン |
10302-78-0 |
C14H18N4O8 |
![(Z)-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylic acid](/CAS/20150408/GIF/1174733-90-4.gif) |
(Z)-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylic acid |
1174733-90-4 |
C10H14N4O6 |
 |
Acyclovir IMpurity I |
|
|
 |
EltroMbopag Methyl Ester |
1246929-01-0 |
C26H24N4O4 |
 |
(4-Chloro-3,5-diMethylpyridin-2-yl)Methanol Hydrochloride |
143016-70-0 |
C8H11Cl2NO |
 |
S,S-Efinaconazole |
164650-45-7 |
C18H22F2N4O |
 |
135270-10-9 |
135270-10-9 |
C12H11F2N3O |
![Carbamic acid, N-[(1R)-2-[5-(2-fluoro-3-methoxyphenyl)-3-[[2-fluoro-6-(trifluoromethyl)phenyl]methyl]-3,6-dihydro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-1-phenylethyl]-, 1,1-dimethylethyl ester](/CAS/20180629/GIF/830346-51-5.gif) |
Carbamic acid, N-[(1R)-2-[5-(2-fluoro-3-methoxyphenyl)-3-[[2-fluoro-6-(trifluoromethyl)phenyl]methyl]-3,6-dihydro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-1-phenylethyl]-, 1,1-dimethylethyl ester |
830346-51-5 |
C33H32F5N3O5 |
 |
(2S,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol |
135272-36-5 |
C12H13F2N3O2 |
 |
Ilaprazole Impurity |
1018229-53-2 |
C11H9N3O |
 |
Eltrombopag Impurity 2 |
|
|
 |
Acyclovir Impurity 13 |
|
|
 |
Azacitidine Impurity 3 |
|
|
 |
N7-[(2-ヒドロキシエトキシ)メチル)グアニン |
91702-61-3 |
C8H11N5O3 |
 |
Axitinib Impurity 4 |
1443118-73-7 |
C22H20N4OS |
 |
Esomeprazole EP Impurity |
|
|
![Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one)](/CAS/20200515/GIF/1797832-75-7.gif) |
Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one) |
1797832-75-7 |
C14H16N10O4 |
 |
2(1H)-Pyridinone, 3,4-dihydro- |
57147-25-8 |
C5H7NO |
 |
1,3-ジヒドロ-5-メトキシ-2H-ベンゾイミダゾール-2-オン |
2080-75-3 |
C8H8N2O2 |
 |
someprazole Impurity 19 |
358675-51-1 |
C16H17N3O3S |
 |
Azacitidine Impurity 34 |
105330-94-7 |
C9H14N4O5 |
![ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate](/CAS/20200119/GIF/2227107-89-1.gif) |
ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate |
2227107-89-1 |
C16H18N4O4 |
 |
Esomeprazole Impurity 42 |
|
|
 |
Efinaconazole Related Impurity 13 |
2055912-03-1 |
C24H32FN5O |
 |
Acyclovir impurity R |
|
|
![(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1)](/) |
(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1) |
|
|
 |
Esomeprazole Impurity 3 |
1346599-85-6 |
C26H30N4O4S |
 |
Eltrombopag Impurity 8 |
|
|
 |
(2R,3R,4R,5R)-2-(4-amino-2-oxo |
1415316-72-1 |
C12H16N4O7 |
 |
4-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one compound with (2R,3S,4R,5S)-2-(hydroxymethyl)-5-methyltetrahydrofuran-3,4-diol |
|
|
 |
Acyclovir Impurity 15 |
|
|
 |
Itropopa Impurity 17 |
|
|
 |
rac 4-Desmethoxy-4-nitro Omeprazole |
317807-10-6 |
C16H16N4O4S |
 |
DesMethyl Erlotinib Carboxylate Acid |
882172-60-3 |
C21H19N3O5 |
 |
Acyclovir IMpurity J |
|
|
 |
Acyclovir Impurity O |
|
|
 |
Eltrombopag Impurity 3 |
|
|
 |
Azacitidine Impurity EJ |
|
|
 |
5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE |
91168-31-9 |
C9H10N2OS |
 |
2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide |
51037-31-1 |
C6H6N2O3 |
![2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone](/CAS/20150408/GIF/CB42645155.gif) |
2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone |
|
C15H15N3O3S |
 |
EsoMeprazole iMpurity |
1424857-86-2 |
C11H15NO3 |
 |
Eltrombopag Impurity 4 |
|
|
 |
Atazanavir Impurity 6 |
1006868-81-0 |
C32H42N4O5 |
 |
Edoxaban Impurity 20 (1R,2R,4S) |
1928729-31-0 |
C16H29N3O7 |
 |
Acyclovir Impurity 11 |
|
|
 |
Esomeprazole Impurity 43 |
2826359-93-5 |
|
 |
Azacitidine Impurity 1 |
|
|
![4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid](/CAS/20200611/GIF/1097777-60-0.gif) |
4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid |
1097777-60-0 |
C13H9NO5 |
 |
Edoxaban impurity ABCDEFGHJKL |
|
|
 |
N-ForMyl-D-ribofuranosyl-3-guanylurea (α/β-Mixture) |
686299-20-7 |
C8H14N4O6 |
![(3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester](/CAS/GIF/1292296-09-3.gif) |
(3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester |
1292296-09-3 |
C38H52N6O7 |
 |
6-アミノ-5-アザシチジン |
105331-00-8 |
C8H13N5O5 |
 |
Esomeprazole Impurity 26 |
704910-88-3 |
C15H15N3OS |
 |
Acyclovir Impurity 1 |
3055289-53-4 |
C13H17N5O6 |
 |
Esomeprazole Impurity |
|
|
 |
Esomeprazole Impurity 27 |
|
|
 |
Aciclovir EP Impurity N |
|
|
![1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea](/CAS/GIF/2508-80-7.gif) |
1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea |
2508-80-7 |
C7H14N4O5 |
 |
Acyclovir Impurity Q |
|
|
 |
Eltrombopag Impurity 6 |
|
|
 |
Esomeprazole Impurity 6 |
|
|
 |
5-Methoxy-2-Hydroxy Benzimidazole |
208-75-3 |
C13H9N |
 |
2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI) |
727375-13-5 |
C8H11NO2 |
 |
135270-13-2 |
135270-13-2 |
C12H11F2N3O |
 |
Eltrombopag Impurity 5 |
|
|
 |
Axitinib Impurity 27 |
1639137-80-6 |
C24H20N4O2S |
 |
(2R,3R,4R,5R)-2-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl acetate |
|
C10H14N4O6 |
 |
Azacitidine Impurity 31 |
65024-85-3 |
C11H16O8 |
 |
Efinaconazole Impurity 13 |
2055038-61-2 |
C18H22F2N4O |
 |
Acyclovir Impurity 12 |
|
|
 |
(E)-3'-(2-(1-(3,4-dimethylphenyl) |
|
|
![sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id](/) |
sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id |
|
|
 |
Eribulin Impurity 2 |
|
|
![2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE](/CAS/GIF/120003-72-7.gif) |
2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE |
120003-72-7 |
C17H17N3O5S |
![5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide](/CAS/20150408/GIF/142885-92-5.gif) |
5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide |
142885-92-5 |
C17H19N3O3S |
 |
Iguratimod Impurity 5 |
84594-95-6 |
C13H11NO4 |
 |
Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride |
143016-68-6 |
C8H10Cl3N |
 |
2-メチルピラジン1,4-ジオキシド |
32046-26-7 |
C5H6N2O2 |
 |
Esomeprazole Impurity 28 |
|
|
 |
Iguratimod |
123663-50-3 |
C18H16N2O6S |
 |
Idebenone Impurity 5 |
88543-33-3 |
C18H28O5 |
 |
Esomeprazole Impurity 41 |
|
|
 |
Esomeprazole Impurity 34 |
|
|
 |
ACICLOVIR, Impurity J |
|
|
 |
Eribulin Impurity 3 |
|
|
 |
Erlotinib IMpurity A |
1058132-82-3 |
C22H25N3O4 |
![O-[(Guanin-9-yl)Methyl] Acyclovir](/CAS/GIF/166762-90-9.gif) |
O-[(Guanin-9-yl)Methyl] Acyclovir |
166762-90-9 |
C14H16N10O4 |
 |
Dehydro Azelnidipine |
918659-10-6 |
C33H32N4O6 |
 |
Ilaprazole Impurity 1 |
|
|
 |
Ilaprazole Impurity 2 |
|
|
 |
Esomeprazole Impurity 24 |
|
|